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Medical Dictionary


noun di·as·to·le \dī-ˈas-tə-(ˌ)lē\

Medical Definition of DIASTOLE

:  the passive rhythmical expansion or dilation of the cavities of the heart during which they fill with blood—compare systole
:  the rhythmical expansion of a pulsating vacuole (as of an ameba)
di·a·stol·ic \ˌdī-ə-ˈstäl-ik\ adjective


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